266972608954943 has 4 divisors (see below), whose sum is σ = 281023798899960. Its totient is φ = 252921419009928.

The previous prime is 266972608954897. The next prime is 266972608954963. The reversal of 266972608954943 is 349459806279662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 266972608954943 - 2¹⁶ = 266972608889407 is a prime.

It is a super-2 number, since 2×266972608954943² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266972608954963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7025594972480 + ... + 7025594972517.

It is an arithmetic number, because the mean of its divisors is an integer number (70255949724990).

Almost surely, 2^{266972608954943} is an apocalyptic number.

266972608954943 is a deficient number, since it is larger than the sum of its proper divisors (14051189945017).

266972608954943 is a wasteful number, since it uses less digits than its factorization.

266972608954943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14051189945016.

The product of its (nonzero) digits is 8465264640, while the sum is 80.

The spelling of 266972608954943 in words is "two hundred sixty-six trillion, nine hundred seventy-two billion, six hundred eight million, nine hundred fifty-four thousand, nine hundred forty-three".